Post-mating interactions and their effects on fitness of female and male Echinothrips americanus (Thysanoptera: Thripidae), a new insect pest in China.
Post-mating interactions and their effects on fitness of female and male Echinothrips americanus (Thysanoptera: Thripidae), a new insect pest in China.
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DOI：
10.1371/journal.pone.0087725
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Feng JN
中科院分区：
文献类型：
--
作者：
Li XW;Jiang HX;Zhang XC;Shelton AM;Feng JN
交配后，异性的性互动在不同的生物中有很大的不同。交配后的相互作用，如重新交配行为和男性骚扰可以影响两性的健身。美洲棘蓟马（Echinothrips americanus）是中国大陆的一种新害虫，其交配后相互作用的研究还很少。本研究观察了重交配频率和雄虫骚扰频率对雌虫适应度参数和子代性比的影响。美洲女性此外，我们测试了交配和交配后的相互作用对男性的健身参数的影响。结果表明，在30天的时间内，雌成虫的再交配频率极低。然而，交配后的女性和男性之间的相互作用，主要是男性骚扰和女性的阻力，确实发生了显着降低女性寿命和繁殖力。有趣的是，增加对雄性的接触并没有影响雌性后代的比例。对于雄性来说，交配大大缩短了它们的寿命。然而，交配后与女性的相互作用没有影响交配男性的寿命。这些结果丰富了我们的基本知识，女性和男性的交配和交配后的行为，在这个物种，并提供了重要的信息，可能会影响这一重要的害虫种群调控的因素。
Post-mating, sexual interactions of opposite sexes differ considerably in different organisms. Post-mating interactions such as re-mating behavior and male harassment can affect the fitness of both sexes. Echinothrips americanus is a new insect pest in Mainland China, and little is known about its post-mating interactions. In this study, we observed re-mating frequency and male harassment frequency and their effects on fitness parameters and offspring sex ratios of E. americanus females. Furthermore, we tested the impact of mating and post-mating interactions on fitness parameters of males. Our results revealed that the re-mating frequency in female adults was extremely low during a 30-day period. However, post-mating interactions between females and males, consisting mainly of male harassment and female resistance, did occur and significantly reduced female longevity and fecundity. Interestingly, increased access to males did not affect the ratio of female offspring. For males, mating dramatically reduced their longevity. However, post-mating interactions with females had no effects on the longevity of mated males. These results enrich our basic knowledge about female and male mating and post-mating behaviors in this species and provide important information about factors that may influence population regulation of this important pest species.
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